Crusher



g- 1930- G. E. CHAMBERLAIN 1,773,475

GKUSHER Filed larch '7, 1925 3 Sheets-Sheet 1 1930. a. E. CHAMBERLAIN 1,773,476

CRUSH-BR Filed larch 1925 3 Sheets-Sheet 2 Imam/70m- M /V94 2 fl g- 19, 1930- s. E. CHAMBERLAIN 1,773,476

CRUSHER il d lar h 7, 1925 3 Sheets-sheet 3 IINIH \lllllll.

HTTXS GEORGE E.

Patented Aug. '19, 1930 i gum-TED l STA E m ms; san t zers Tn e, CHAMBERLAIN, EXECUTRIYX or SAID GEORGEVE. CHAMBERLAIN, DECEASED GBUSHER I Applicatid nhfi led" March 7, 1925. sees m; 3,897,

Thisinvention relates to mechanism for crushing material to divide'it into small'portions and has for its object the provision of a crushing machine which shall be of im- 5 proved construction and operation and in "which the crushing action will be produced by relativelyfslow powerful movement as distinguished from quick blows.

The invention is exemplified inthe combination and arrangement .of parts shown in the accompanying drawingsjand described in the following specification, and it is more partic- 1 ularly pointed out in the appended claims.

In-the drawings Fig. 1 is a top plan view of a crushing machine embodying one form of the invention; Fig. 2 is an elevation of the machine shown lap one anothenas shown in Fig. 3 is a section on line-33 of Fig. 2;

Fig.4 is'a fragmentary side elevation-of the part shown in Fig. '3';

Fig; 5 is a perspective view; of the back 'ing platefor the crushing chains; and

Fig.6 is a perspective view of the cleaner teeth and'their mounting. V '1 As shown in Figsl and 2, a suitable framework 10. is provided having upper and lower supporting sills 1'1 and 12. A pair of shafts 18 and let are journaled in bearings and 0' 16 mounted "on the lower sills '12 and coop eratingshaftsl? and 18 are mountedin bearings 19 and 20 on the upper sills 1 1. The shafts 13 and 14: are provided with sprocket wheels 21 and 22, respectively, there being a plurality of sprocket wheels spaced from oneanother on each of the shafts. The upper shafts l7 and 18 are, provided with sprocket wheels 23 and 24:, there being a sprocket wheel 'on each ofthe uppershafts to correspond to feaclrof the sprocket wheels on thecoop'erat- "inglower shaft. The wheels 21 and 23 are connected by a sprocket chain 25 and a corresponding chain 26 i connects" the sprocket wheels 22 and 24. Thejsprocket chains are 'inadeup of a series of bars 27 having bearing lugs28 projecting inwardly therefrom, The 'bearing lugs 28 of alternate bars 27 are differently spaced and project laterally from the edgesof the bars so that theywill over- Figs. 3' and 4.

The overlapping lugs are-recessed for receiving' a connecting bolt 29 and bearing bush ngs 30 are preferably provided to surround the bolt 29 where it passes through the lugs'28. Rollers 32arejournaled on the rod 29 between the closest pairs of lugs 28, Theserollers engage the sprocket wheels21,

'22, 23 and 24130 guide the chains-'aboutthe 'wheels. Extending outwardly from the platesf27 are'spaced-crusher' blades 33. i

and 18 are separated from one another a greaterdistance than are the shafts 13 and 14 so that a V'shaped opening is provided between the'adjacent faces o'f'the conveyer 14: are so placed that'the edges of the blades 33 closely approach one'another at the lower ends of the sprocket chain'sbut are sep arated at their upper ends a sufficient amount to-admit the material to be crushedi The rows ofblades' 33 on -thetwo sprocket chainsiare shown 'tobe in registration with one "another, but'the lnvent-l'on ls'notconfined to this against the 'for'ce exerted thereon byfthe ma terial fed thereto, the backing pla'tes' 34 are 'arranged'inthe rear of each of the conveyer chains These backing plates are supported on channel irons 35 secured to the inner-faces of the beams-ll and 12'and anglei'rons preferablyextend across the rear face of the backing plates toprovide qr'einfor'cement therefor. Adjacent the outer runs ofthe conveyer'chains there are provided cleaning teeth 87 which aresupported-on angle bars 88 and which project-between the rows of blades 33; Any h1aterial which adheres to theconveyer chains will be removed by these cleaner teethas it isf'carried upwardly on theoutwardruns'of the'conveyers. v The shaft 13 is provided withgea'rs 39 and 40 at opposite sides of the supporting frame and these gearsmesh with'gears 41 and42, respectively,'on the'shaft 14; A larger gear 431s secured to the shaft 13 which meshes As will be seenlfrom Fig. 2,theshafts 17 i '65 I chains 25 and 26, the space between the chains 7 V belng greater at their upper portion thanit is at their'lower portions. The shafts 18 and CHAMBERLAIN, 0F DECATU with a pinion 44 on a shaft 45 journaled in bearings 46 on the supporting frame. A second gear wheel 47 similar to 43 may also be secured to the shaft 13 in position to mesh with a pinion 48 on the shaft 45 in order to provide a double gear connection between the shafts 45 and 13. The shaft 45 is provided with a gear 49 which meshes with a pinion 50 on a drive shaft 51 journaled in bearings 52 on the frame 10. The drive shaft 51 may be driven by a suitablesource of power, not shown. The gear train described provides a powerful drive for the crusher chains so that the chains are driven at a relatively slow speed, but with great power.

The form of the machine described is one designed especially for Crushing blocks of corn sugar which as taken from the crystallizing floors are usually about 24:" x 12 X 8". Heretofore these blocks have been divided by feeding to knives or choppers which shave the sugar from the block. This is a slow process and requires the constant care of an attendant. The sugar is of such nature that rapidly moving implements tend to cause the material to become gummy and sticky so as to clog the.- operation of the device. Be-

cause of the slow powerful movement of the present invention the blocks may be fed whole to the crusher through a hopper shown at 53, in Fig. 2 of the drawings or by any other suitable means, and the process is rapid and continuous for the reason that the entire block is crushed at a single operation and requires no repeated feeding movements. The crushing mechanism requires no attention other than to see that the material is supplied thereto and removed when crushed. The slow movement prevents the clogging of'the mechanism, but in case any material adheres to the crusher chains it is automatically removed by the teeth 37. Thespacing between the conveyer chains may be adjusted by shifting the bearings 15 and 16 on their supporting members, if desired.

I claim 1. A crusher comprising a pair of crushing elements arranged adjacent each other with a wedge-shaped opening therebetween, said elements having teeth thereon projecting into said opening, and means for driving said elements in unison with each other.

toward the smaller portion of said opening while, retaining any particular tooth on one belt in constant registration with a corresponding tooth on the other belt throughout the active travel of said teeth to draw material placed between said elements toward the smaller portion of said opening to cause said teeth to crush said material.

2. A crusher comprising a pair of chain belts having straight portions thereof arranged in opposition to each other and dis posed at an angle to each other to provide a tapered opening therebetween, teeth on said belts projecting into said opening a distance su'i'ficient to enable said teeth to pass close ly adjacenteach other at the smaller end of said opening, and means for driving said belts in unison with one another toward the smaller portion of said opening to cause said 268th to crush material; placed; between said elts.

3. A crusher comprising a pair of chain belts having flat opposing portions arranged at an angle to each other, guide pulleys over which said belts travel, the guide pulleysfor one belt having their axes parallel with the axes of the pulleys for the other belt, backing elements for said opposing portions, and means for driving said belts to cause said portions to approach each other to crush material placed therebetween.

i. A crusher comprising a pair of chain belts having opposing portions arranged at an angle to each other to provide a wedgeshaped opening therebetween, teeth on said belts projecting into said opening a distance suiiicient to enable said teeth to pass closely adjacent each other at the smaller end of said opening, backing plates for the opposing portions of said belts, and means for driving said belts in unison with one another toward the smaller portion of said opening to cause said teeth to crush material held between said belts.

5. A crusher comprising a belt having rows of teeth thereon for engaging material to be crushed, and cleaning elements extending between said rows of teeth for removing material from said teeth.

6. A chain for a crusher comprising a plurality of bars hinged to one another, said bars having crushing teeth projecting therefrom, said teeth being in the form of .blades arranged side by side in spaced relation with their edges disposed parallel with the length of said chain and facing outwardly from said chain. v I

7. A chain for a crushercomprising a plurality of bars each having bearing lugs at one side thereof, and crushing teeth in the form of spaced blades extending longitudinallyof said chain at the opposite side thereof from said lugs, the bearing lugs of adjacent bars being hinged to one another to form a continuous belt.

8. A chain fora crushing machine comprisingva plurality of bars extending transversely of said chain and provided with bearing lugs spaced longitudinally thereof, the lugs of adjacent bars being offset relative to one another and projecting beyond the edges of said bars so that the lugs of each bar are brought into registration with the lugs of the adjacent bars, bearing pins for hinging registering lugs to one another, and rollers journaled on said bearing pins to engage driving sprockets for said chain.

9. In a crushing machine, a pair of chainseach comprising a plurality of bars hinged to to provide a tapered opening between said a axes parallel with the axes of the sprocket wheels of the other-chain and arranged in position to hold said chains in different spaced relations at theopposite ends thereof chains. r

10. A crushlng. machine comprising ,a frame, two pairs of shafts journaled 1n said frame, the shafts of said pairs being spaced different distances from one another, a plurallty of sprocket wheels mounted on each of said shafts, crusher chains journaled on said I sprocket wheels and having ad acent runs thereof arranged at'an angle to each other to form a wedge-shaped opening therebetween, and speed reduction gearing arranged to drive the sprocket wheels for the two chains at the same peripheral speed to'impart a slow powerful movement to said chains in unison with each other to cause material placed therebetween to be drawn into the smaller portion of said wedge-shaped opening and crushed between said chains. 11. A crusher comprising a frame, two

; pairs ofshafts mounted on said frame all of said shafts being parallel, a plurality of sprocket wheels securedto each of said shafts,

a pair of sprocketchains carried by said sprocket wheels andlhaving adjacent runs thereof arranged at an inclination to each other, said sprocket chains comprising bars extending transversely thereof and hinged to one another and provided with crusher teeth projecting therefrom, a hopper for feeding materialto the space between said sprocket chains, and power multiplying driving "mechanism for driving said sprocket wheels to move the adjacent runs of said sprocket chains toward oneanoth'er to crush the material fed'fromsaid hopper.

12. A crusher comprising a pair of chain beltshavi'ng adjacentruns arranged at an angle to each other to provide a wedge-shaped opening therebetween," said belts. having rows I "of teeth 'thereonwithfthe rows on onebelt arranged inregistration with the rows on the other belt, and means for drlving said belts sufficient to enable said teeth to passclosely adjacent each other at thesmaller end'of said opening, and, means for driving said belts to-- ward the smaller portion of saidopening. to

cause said teeth to crush material placed between said belts. 1 V j w 14., A crusher comprisin a pairlof chain belts having opposite portions arranged at} an angle, to each other to provide a wedgeshaped opening therebetween, teeth on said belts projecting into said opening a distance sufiicient to enable said teeth to pass closely ad acent each other at the smaller end of said opening, backing plates for the opposing portionsv of said belts," and means for driving said belts toward thesmall'er portion of said opening tocause saidteeth to crush material held'between said'belts.

15. A crusher comprising a belt havin rows of teeth thereon for engagingmateria to be crushed, and cleaning elements extending between said rows of teethfor removing.

material from said teeth comprising aplurality ofcfingersextending between said rows of teeth and having projections thereon extending outwardly from said fingers in a f direction opposite to the; direction of move merit ofsaidbelt. j p

In testimony whereof -I-have' signed my nameto this 'specification on this 4th day of March, A. 111925.

GEORGE orIAMBERLAmf in unison with each other so that the teeth 7 on each belt travel toward the smaller portion of said opening whilethe teeth on sald belt retain registration with corresponding teeth on the other belt.

13. A crusher comprising a pair of chain belts having straight portions. thereof arvrangedin opposition to each other and dis-i posed at an angle to each other to provide a tapered opening therebetween, teeth on said belts projecting into said opening a distance 

